Linux Administration Cookbook

Updating our VM

Now that we've got access to our machine, we're going to run one command to make sure that we've got the latest version of all the installed software:

$ sudo yum update

When run, you may be presented with a long list of software to update. Typing Y for confirmation and hitting Enter will work through the upgrade of this software, as well as any dependent software that's needed. You may also be prompted to accept new or updated GPG keys.

GPG is a book by itself – not an exciting book, but certainly a book.

If you've upgraded software that's constantly running, such as an Apache web server, it can be a good idea to schedule a restart of that service to make sure that the newer version is in use.

As a rule of thumb, the only ...